CN204619462U - Filter tank water inlet automaton - Google Patents

Abstract

The utility model discloses an automatic control device for water inlet of a filter tank, which belongs to water treatment and filtering equipment. It also includes mechanical maintenance of butterfly valve, floating valve and bracket on the pool wall. The body of the floating valve is equipped with a horizontal water inlet flange and a downward outlet pipe, a valve plate and a driving mechanism with a guide rod and a buoy. The valve plate and the driving mechanism The guide rod is fixedly connected; the bracket is composed of an upper bracket and a lower bracket, and the distance between the upper bracket and the lower bracket corresponds to the height of the floating valve body; the valve body is vertically fixed on the bracket, and the upper end corresponds to the high liquid level of the filter tank. The lower end corresponds to the low liquid level of the filter, the water inlet flange is connected to the mechanical maintenance butterfly valve, the outlet pipe faces downward to the filter, and the buoy floats on the liquid surface of the filter. The device makes full use of the normal filtering water level and backwashing water level of the filter, drives the linkage of the guide rod and the valve plate through the lifting of the buoy, realizes the automatic control of the water intake, reduces the discharge of fresh water, reduces the self-consumption of fresh water, and at the same time lightens the equipment. Maintenance, improve water quality pass rate.

Description

Filter water inlet automatic control device

technical field

The utility model belongs to water treatment and filtering equipment, in particular to a water inlet control device for domestic and production water filters.

Background technique

The production, domestic water production and sewage treatment of industrial and mining production enterprises all adopt coagulation, sedimentation and filtration water production processes. Therefore, the filter tank is the key equipment for water production, which not only affects the quality of water production, but also restricts the smooth progress of production. As we all know, the filter tank is composed of several connected pools. The upper part of the pool wall is equipped with an inlet channel and a water inlet control device connected to the water inlet channel. The water inlet control device realizes the control of the amount of new water entering during filtration and backwashing. The lower part of the filter is equipped with a backwash drainage tank, a filter material layer, a water distribution hole and a water distribution chamber. A clean water chamber and a clean water channel connected to the clean water chamber are arranged on the outside of the pool body. The water distribution chamber is connected to the clean water chamber. At present, there are two kinds of filter water inlet control devices:

The first is the water inlet control device of the siphon filter, which is composed of a siphon water inlet pipe, a vacuum pump, a vacuum tube, valve components and power distribution facilities. The water inlet pipe is used to adjust the vacuum degree by the valve assembly, and the power distribution facility provides power guarantee for the vacuum pump. The existing problems are: 1) The prices of vacuum pumps, vacuum tubes and accessories are high, correspondingly, the production input costs are large, and professional and technical personnel are required for special management and on-site operations, it is difficult to realize automatic centralized control, and the cost of personnel and equipment is high; 2) Vacuum pumps 1. Vacuum tubes and valves are easy to freeze in winter, and the work is not smooth, which affects the normal backwash of the filter, and then affects the water quality of production and domestic water. The turbidity is high and cannot be used normally; Maintenance workload; 4) When the siphon filter is backwashed, the siphon water inlet pipe still enters water when the vacuum pump stops working, resulting in new water being drained while the backwashing time is 5-10 minutes, and the waste of new water increases by 6-12% , the self-consumption water increases, and the cost increases.

The second is the filter pressure water inlet control device, which is composed of water inlet pipe, electric valve, water inlet bypass and water inlet tee. The other end is connected to the water inlet tee, and the electric valve is electrically connected to the electric control system of the filter; water inlet bypasses with manual valves are installed on the pipes on both sides of the electric valve. The existing problems are: 1) The electric valve is not easy to maintain due to its complex structure, and the electric valve is easy to be damaged, the spare parts are consumed, the electric valve is expensive, the overall investment cost of the equipment is high, and the production cost is greatly increased; 2) Once the electric valve appears In case of failure, the water inlet bypass is opened. In this case, the water inlet of the filter cannot be effectively controlled, resulting in drainage while feeding new water. The backwashing time is 5-10 minutes, and the self-consumption water increases and the cost increases.

Utility model content

In order to overcome the defects of the prior art, the purpose of this utility model is to provide an automatic control device for filter water intake, which is simple in structure and practical, reduces the discharge of new water during the backwashing process of the filter, reduces the consumption of new water, and facilitates the filtration of the filter. Realize automatic control with backwashing water, save energy and reduce consumption, reduce maintenance costs and self-consumption water costs.

The filter water inlet automatic control device includes a filter tank, and an inlet channel is set on the pool wall, and the water inlet channel and the filter tank are connected by a connecting pipe. The valve body of the floating valve described above is provided with a horizontal water inlet flange, a downward outlet pipe, a valve plate and a driving mechanism with a guide rod and a buoy, and the valve plate is fixedly connected with the guide rod of the driving mechanism; The distance between the upper bracket and the lower bracket corresponds to the height of the floating valve body; the valve body is fixed vertically on the bracket, the upper end corresponds to the high liquid level of the filter tank, the lower end corresponds to the low liquid level of the filter tank, and the water inlet flange It is connected with the mechanical maintenance butterfly valve, and the outlet pipe is directed downward to the filter tank, and the buoy floats on the liquid surface of the filter tank. When in use, the buoy drives the guide rod and the valve plate to move up and down with the change of the liquid level of the filter to open or close the water flow.

The utility model is further improved. The floating valve is composed of a valve body, a valve plate and a valve plate driving mechanism. The valve body is connected by a horizontal tube and a vertical tube. The upper end of the vertical cylinder is provided with an upper flange and a valve cover with a through hole in the center, the upper flange is provided with a support frame, the lower end of the vertical cylinder is provided with a water outlet flange, which is connected with the valve seat with a through hole in the center, and the outlet pipe is fixed on the valve Below the seat; the valve plate is a circular plate with a through hole in the center; the valve plate driving mechanism is composed of a guide rod and a lifting ring connected to it, a limit plate, a spring and a buoy. The length of the guide rod is 2-2.5 of the length of the valve body. times, the guide rod is installed in the valve body and can slide up and down; the lifting ring, limit plate and spring are placed above the valve cover, the buoy is placed under the valve seat, the valve plate is placed in the valve body, and the valve plate is fixedly connected with the guide rod. The distance between the valve plate and the bottom end of the guide rod is consistent with the height of the floating valve body, and the valve plate moves up and down as the guide rod slides in the valve body.

The utility model is further improved. The valve seat is disc-shaped, and a circular through hole is set in the center of the valve seat. At least four fan-shaped ribs are arranged around the circular through hole. The radius of the fan-shaped ribs is consistent and concentric. The sleeve is fixed, the inner diameter of the sleeve is larger than the outer diameter of the guide rod; the valve seat is provided with a circular groove, and an O-shaped sealing ring is arranged in the groove, and its diameter is smaller than that of the valve plate. The fan-shaped hole is closely matched with the O-ring to stop water inflow; there are at least eight screw holes on the outer disc surface of the valve seat to facilitate the fixing of the valve seat and the valve body.

During normal filtration: the water level of the filter is at the normal water level, the buoy floats, the valve plate is separated from the O-ring or above the C position, the floating valve is open, and the water in the inlet channel passes through the inlet pipe to the valve body to the filter; backwash Time: the sewage from the filter is siphoned out through the drainage pipe, the water level of the filter drops to the lowest water level, the buoy goes down, and the floating valve uses the gravity of the buoy to close the valve plate and the O-ring, stop the water inflow, and the backwash takes about 5- 10 minutes; after the filter is backwashed, since the clean water chambers of adjacent filters are connected to each other when the filter is in normal operation, after the filter backwash stops, the water level will rise by relying on the water from the other pool, the buoy will float up, and the valve plate and O The type sealing ring is separated, the float valve is reopened, and the filter is put into operation.

Compared with the existing technology, the advantage is that the concept is novel, the structure is simple and reasonable; the device makes full use of the normal filtration water level (high water level) and backwash water level (low water level) of the filter tank, and drives the guide rod and valve through the lifting of the buoy. The linkage of the panels realizes the automatic control of the water inflow, completely cancels the vacuum water distribution facilities, improves the operation of the filter, reduces the discharge of new water, reduces the self-consumption of new water, reduces equipment maintenance, and improves the pass rate of water quality.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a schematic structural view of the filter water inlet automatic control device;

Fig. 2 is the structural representation of Fig. 1 floating valve;

Fig. 3 is the cooperation diagram of Fig. 1 valve plate and valve seat;

Fig. 4 is a top view of the valve seat in Fig. 1 .

In the figure: 1-inlet channel, 2-connecting pipe, 3-mechanical butterfly valve, 4-valve body, 5-lift ring, 6-limit plate, 7-spring, 8-bonnet, 9-support frame, 10-upper Bracket, 11-valve plate, 12-outlet flange, 13-valve seat, 131-rib plate, 132-sleeve, 133-groove, 134-screw hole, 14-lower bracket, 15-outlet pipe, 16 -guide rod, 17-pontoon, 18-filter tank, 19-upper flange, 20-water inlet flange, 21-clear water channel, 22-clear water chamber, 23-backwash drainage tank, 24-filter material layer, 25 -Water distribution chamber, 26-drain, 27-O-ring.

Detailed ways

Below in conjunction with embodiment the utility model is described in further detail.

As shown in Figures 1 and 3, the filter water inlet automatic control device includes a filter tank 18, the filter tank is composed of several pool bodies connected, the upper part of the pool wall is provided with a water inlet channel 1, and the lower part of the filter tank is provided with a backwash drainage tank 23. The filter material layer 24 and the water distribution chamber 25. A clean water chamber 22 and a clean water channel 21 connected to the clean water chamber are arranged on the outside of the pool body. The water distribution chamber is connected to the clean water chamber. It also includes machine repair butterfly valve 3, floating valve and brackets arranged on the pool wall. The floating valve body 4 is provided with a transverse water inlet flange 20, a downward outlet pipe 15, a valve plate 11 and a guide rod 16 1. The drive mechanism of the buoy 17, the valve plate is fixedly connected with the guide rod of the drive mechanism; the support is composed of an upper support 10 and a lower support 14, and the distance between the upper support and the lower support corresponds to the height of the floating valve body; The valve body is vertically fixed on the bracket, the upper end corresponds to the high liquid level of the filter tank, and the lower end corresponds to the low liquid level of the filter tank, the water inlet flange is connected to the mechanical maintenance butterfly valve, the outlet pipe faces downward to the filter tank, and the buoy floats on the liquid surface of the filter tank . When in use, the buoy drives the guide rod and the valve plate to move up and down with the change of the liquid level of the filter to open or close the water flow.

In Fig. 2, the floating valve is composed of a valve body 4, a valve plate 11 and a valve plate driving mechanism. The valve body is connected by a horizontal tube and a vertical tube. Flange 20, an upper flange 19 and a valve cover 8 with a through hole in the center are arranged on the upper end of the vertical cylinder, a support frame 9 is arranged under the upper flange, an outlet flange 12 is arranged on the lower end of the vertical cylinder, and a valve seat 13 with a through hole in the center is arranged. connection, the water outlet pipe 15 is fixed below the valve seat; the valve plate is a circular plate with a through hole in the center; 17, the length of the guide rod is 2-2.5 times the length of the valve body, the guide rod is installed in the valve body, and can slide up and down; the lifting ring, the limit plate, and the spring are placed above the valve cover, the float is placed under the valve seat, and the valve plate Placed in the valve body, the valve plate is fixedly connected with the guide rod, the distance between the valve plate and the bottom end of the guide rod is consistent with the height of the floating valve body, and the valve plate moves up and down as the guide rod slides in the valve body.

As can be seen from Fig. 4, the valve seat 13 is in the shape of a disk, the center of the valve seat is provided with a circular through hole, and at least four fan-shaped ribs 131 are arranged around the circular through hole, the radius of the fan-shaped ribs is consistent and concentric, and the ribs The front end of the plate is fixed to the sleeve 132, and the inner diameter of the sleeve is greater than the outer diameter of the guide rod 16; the valve seat is provided with a ring groove 133, and an O-shaped sealing ring 27 is established in the groove, and its diameter is smaller than that of the valve plate 11. When it is opened, the fan-shaped Hole water intake, valve plate covers fan-shaped hole and closely cooperates with O-type sealing ring when closing, stops water intake; Valve seat outer disk surface is all provided with at least eight screw holes 134, is convenient to valve seat and valve body 4 fixing.

During normal filtration: the water level of the filter is at the normal water level, the buoy floats, the valve plate is separated from the O-ring or above the C position, the floating valve is open, and the water in the inlet channel passes through the inlet pipe to the valve body to the filter; backwash Time: the sewage from the filter is siphoned out through the drainage pipe, the water level of the filter drops to the lowest water level, the buoy goes down, and the floating valve uses the gravity of the buoy to close the valve plate and the O-ring, stop the water inflow, and the backwash takes about 5- 10 minutes; after the filter is backwashed, since the clean water chambers of adjacent filters are connected to each other when the filter is in normal operation, after the filter backwash stops, the water level will rise by relying on the water from the other pool, the buoy will float up, and the valve plate and O The type sealing ring is separated, the float valve is reopened, and the filter is put into operation.

Claims (3)

1. The filter water inlet automatic control device includes a filter (18), an inlet channel is set on the wall of the pool, and the inlet channel and the filter are connected by a connecting pipe. It is characterized in that it also includes a machine repair butterfly valve (3), a floating valve and a device The bracket on the pool wall, the floating valve body (4) is provided with a horizontal water inlet flange (20) and a downward outlet pipe (15), a valve plate (11) and a guide rod (16), a buoy (17) The driving mechanism, the valve plate is fixedly connected with the guide rod of the driving mechanism; the bracket is composed of the upper bracket (10) and the lower bracket (14), the distance between the upper bracket and the lower bracket is the same as that of the floating valve body Corresponding heights; the valve body is vertically fixed on the bracket, the upper end corresponds to the high liquid level of the filter, and the lower end corresponds to the low liquid level of the filter, the water inlet flange is connected to the mechanical repair butterfly valve, the outlet pipe faces downward to the filter, and the buoy floats on the filter pool surface. 2. The filter water inlet automatic control device according to claim 1, characterized in that the floating valve is composed of a valve body (4), a valve plate (11) and a valve plate driving mechanism, and the valve body is composed of a horizontal tube Connected with the vertical tube, the water inlet flange (20) is located on the lower part of the vertical tube, the outer end of the horizontal tube, the upper flange (19) and the valve cover (8) with a through hole in the center are installed on the upper end of the vertical tube, and the upper flange There is a support frame (9) underneath, and a water outlet flange (12) is set at the lower end of the vertical tube, which is connected with the valve seat (13) with a through hole in the center, and the water outlet pipe (15) is fixed under the valve seat; hole; the valve plate driving mechanism is composed of a guide rod (16) and a suspension ring (5) connected to it, a limit plate (6), a spring (7) and a buoy (17), and the length of the guide rod is The length of the valve body is 2-2.5 times, and the guide rod is installed in the valve body; the lifting ring, the limit plate, and the spring are placed above the valve cover, the float is placed under the valve seat, the valve plate is placed in the valve body, and the valve plate and the guide rod are fixed. Connection, the distance between the valve plate and the bottom end of the guide rod is consistent with the height of the floating valve body. 3. The automatic filter water inlet control device according to claim 2, characterized in that the valve seat (13) is in the shape of a disc, the center of the valve seat is provided with a round through hole, and at least four sectors are arranged around the round through hole Ribs (131), the radius of the fan-shaped ribs are consistent and concentric, the front end of the ribs is fixed sleeve (132), the inner diameter of the sleeve is larger than the outer diameter of the guide rod (16); the valve seat is provided with a ring groove (133) , an O-shaped sealing ring (27) is set in the groove, and its diameter is smaller than that of the valve plate (11); at least eight screw holes (134) are arranged on the outer disc surface of the valve seat.